Coming back to the Cubans, as good as they are in the amateur game, they definitely take advantage of the system. They are 30, 31, 32 - probably medalled at the previous Olympics and then fight kids from other countries who are 20 , 21, 22. So much of an advantage mentally and physically. You rarely see this in the pro game. Mayweather when he was 18 beating Hernandez for a world title. Doesn't happen much though.